Face Mask, with Fuller Coverage. Temperature gauges on Book Shelf.. Reusable Cotton Face Mask,. 8 1/2 X 5 ½”, Comes with a PM 2.5 filter and an extender as many people do not like wearing using ear loops. This helps when you just want to pull your mask down for a moment. Our masks stack multiple layers of soft 100% pre-washed cotton. The CDC has adopted a safety-first policy and is recommending everyone wear non-medical protective face coverings to help "flatten the curve"